[  490.669002] netdevsim netdevsim501 eni501np1: renamed from eth0
[  490.765520] netdevsim netdevsim558 eni558np1: renamed from eth1
[  490.978232] Could not find device with ifindex 2000 in netnsfd 11
[  490.978486] Could not find netns with fd: 2000
[  490.978568] Cannot link a netdevsim to itself
[  490.978666] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).